During the 60s and 70s, Yugoslavia was a prospering playground for the architects of the Spomeniks: Monuments that were created as memorials to the Second World War. But with the fall of socialism, these monuments seem to be abandoned and forgotten.

If you’re looking for conclusive evidence that we were once visited by furry little creatures from a place far away, stop looking for clues in Steven Spielberg movies and instead check out these remarkable photos of Yugoslavian monuments from the 1960s and 70s that were commissioned by former president Josip Broz Tito to commemorate World War Two battle sites.